impact

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Related to impacts: Environmental impacts

have an impact on (someone or something)

To affect or influence someone or something. Of course your decision has an impact on me—I'm your wife! Don't worry, your grade on that assignment has very little impact upon your overall grade for the semester.
See also: have, impact, on

impact (up)on (someone or something)

To affect or influence someone or something. Of course your decision impacts on me—I'm your wife! Don't worry, your grade on that assignment won't impact upon your overall grade for the semester.
See also: impact

upon impact

At the instant physical contact or a collision occurred. The egg smashed upon impact with the cement. No, sir, the pilot died upon impact.
See also: impact, upon

have an impact on someone or something

to leave an impression on someone or something. The sharp change in interest rates had an impact on the housing market. Your story really had an impact on me.
See also: have, impact, on

impact (up)on someone or something

[for something] to have an effect on someone or something. (Upon is formal and less commonly used than on.) This plant closing will impact upon the local economy for years to come. The day's troubles impacted on Rachel quite seriously.
See also: impact, on

upon impact

Fig. at the place or time of an impact. The car crumpled upon impact with the brick wall. The man who fell from the top of the building died on impact.
See also: impact, upon

impact on

v.
To have an effect on someone or something: The results of the election will impact on upcoming legislation.
See also: impact, on
References in periodicals archive ?
The pier model was validated by comparing numerical impact force and deformation with the experimental data of the drop hammer impact test on RC beam.
The impacts on the state's economy of a $740 million reduction in state expenditures on TennCare are shown in Figure 2.
Impact crushers typically produce a good minus 1 1/2-inch base type material but can also produce larger products, which can be screened to make some typical road materials or utility drainage materials.
The committee also recommended that improved regulatory analysis should include clearer and more prominent explanations of the many uncertainties inherent in CEAs; should better address differences in impacts on various geographic areas and groups, such as infants, the elderly, and those of different races and economic classes; should be standardized so that all federal agencies use a common approach; and should be more transparent and open to public involvement and review.
- From the moment an impact is recognized as a collision to the moment of airbag inflation, only 0.060*1seconds elapses.
In the July 21 Nature, Thompson and Mark Robinson of Northwestern University in Evanston, Ill., suggest that this pattern doesn't match that of models of material sprayed from a meteor impact.
Among other things, Justice Grays held that the EIS contained all the information necessary for the public to understand the potential environmental impacts, that the air quality analysis was comprehensive and thorough, that the public was afforded ample opportunity to comment and participate in the process, and that no environmental justice analysis was required at this time.
Among the theories in which the impact of CIAD is described in terms of QOL, Devins' theory of illness intrusiveness is perhaps the best established and the most comprehensively researched in the rehabilitation literature.
Benefits are energy savings, environmental impacts, simpler operation, and reduced chemical costs.
The loss of the Space Shuttle Columbia as a result of impact damage from foam debris during ascent led NASA to develop and implement on-board impact detection technologies.
The final chapter is a concise restatement of the tenets of positive impact forestry developed throughout the book, with emphasis on the centrality of protecting soils and revising the time perspectives of traditional forestry.
The Unique Contributions and Impacts of the Camp Staff Experience
The third objective was to evaluate how vehicles respond to low-speed rear-end impacts. The researchers were specifically interested in determining average and peak vehicle accelerations, coefficients of restitution and duration of impacts.
Kennedy School of Government, Harvard University; Climate Impacts Research Centre, Abisko, Sweden; Potsdam Institute for Climate Impact Research, Potsdam, Germany; Institute of Nature Conservation, Kliniekstraat 25 1070 Brussels, Belgium; and Lakehead University, Confederation College, University of Toronto, the University of Western Ontario, and other university research programs across Canada and the United States.
While the terms are often used synonymously, their goals and impacts can be very different.